الفهرس 
Title : Ultrasonography and dynamometer correlation in muscle strength measurement of hemiplegic cerebral palsy children
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Abstract
Background: Cerebral palsy (CP) describes a group of permanent disorders of movement and posture development, causing activity limitations attributed to non-progressive disturbances that occurred in the developing fetal or infant brain.Purpose : This study was conducted to investigate and correlate between Ultrasonographic readings (thickness and pennation angle) and Dynamometer in hemiplegic cerebral palsied children. Subjects and materials: There was only one group that include 40 hemiplegic cerebral palsied children of both sexes. Their ages ranged from Four to Nine years, recruited from the outpatient clinic, Faculty of Physical Therapy Cairo university and National Institute of Neuromuscular Disorders. All parents of children signed a consent form. Ultrasonography was used to assess pennation angle and muscle thickness while dynamometer used to assess quadriceps muscle strength. Results: Children aged 6.67 ± 1.58 years, there were strong direct correlations between affected and less affected sides (0.967, 0.946 and 0.953) regarding pennation angle, muscle thickness and muscle strength respectively. Also, there were moderate correlations between strength and pennation angle (.367 and .434) in affected and less affected side and no correlation between muscle strength and muscle thickness either in less affected or affected side respectively. Also, there is statistically significant difference between affected and less affected regarding pennation angle, muscle thickness and muscle strength (P>0.000)